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SM8303-ADJ 数据表(PDF) 3 Page - SamHop Microelectronics Corp. |
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SM8303-ADJ 数据表(HTML) 3 Page - SamHop Microelectronics Corp. |
3 / 11 page SAMHOP Microelectronics Corp. SM8303 150KHz, 3A PWM Buck Switching Regulator 3 V1.0 May 17 ,2007 Absolute Maximum Ratings Symbol Parameter Rating Unit VCC Supply Voltage +35 V VSD ON/OFF Pin input voltage -0.3 to +25 V VFB Feedback Pin voltage -0.3 to +25 V VOUT Output voltage to Ground -1 V PD Power dissipation Internally limited W TST Storage temperature -65 to +150 oC TOP Operating temperature -40 to +125 oC VOP Operating voltage +4.5 to +25 V Electrical Characteristics (All Output Voltage Versions) Unless otherwise specified, VIN=12V for 3.3V, 5V, adjustable version and VIN=24V for the 12V version. ILOAD = 0.3A Symbol Parameter Conditions Min. Typ. Max. Unit 60 IB Feedback bias current VFB=1.3V (Adjustable version only) 40 100 nA 127 150 173 FOSC oscillator frequency 110 173 Khz 1.4 VSAT saturation voltage IOUT=3A no outside circuit VFB=0V force driver on 1.3 1.5 V Max. Duty Cycle(ON) VFB=0V force driver on 100 DC Min. Duty cycle(OFF) VFB=12V force driver off 0 % 5.5 ICL current limit peak current no outside circuit VFB=0 force driver on 3.6 4.5 6.5 A Output = 0V no outside circuit VFB=12 force driver off 200 uA IL Output= -1V Output leakage current VIN=32V 2 60 mA IQ Quiescent Current VFB=12 force driver off 5 10 mA 250 ISTBY Standby Quiescent Current ON/OFF pin=5V VIN=24V 150 300 uA VIL Low (regulator ON) - 0.6 VIH ON/OFF pin logic input threshold voltage High (regulator OFF) 2.0 1.3 - V IH ON/OFF pin logic input current VLOGIC=2.5V (OFF) 15 25 IL ON/OFF pin input current VLOGIC=0.5V (ON) 0.02 5 uA TO220-5L 2.5 ΘJC Thermal Resistance TO263-5L Junction to case 3.5 oC/W TO220-5L 28 ΘJA Thermal Resistance With copper area of approximately 3 in 2 TO263-5L Junction to ambient 23 oC/W |
类似零件编号 - SM8303-ADJ |
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类似说明 - SM8303-ADJ |
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